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Annotation of 3BSD/cmd/net/netmail.c, revision 1.1

1.1     ! root        1: /*
        !             2: 
        !             3:  netmail [-l ...] [-p ...] [-f] [-n] [-r] [-c] ([mach] | [mach:username])
        !             4: 
        !             5:    Read mail on remote machine "mach"
        !             6:    Sends a command to the remote machine to "mail" the mail
        !             7:    to this machine.
        !             8:    The -r option says remove any mail you find on the
        !             9:    remote machine after sending it back to this machine.
        !            10:    Uses the -q option of net, so is a quiet command.
        !            11: 
        !            12:    If the -c option is specified, this command is a mail check command,
        !            13:    and in this mode it logs into the remote machine as "network"
        !            14:    and determines if mach:username has mail.
        !            15:    If so, it writes/mails a message to that effect.
        !            16:    If not, it should be silent.
        !            17:    This variant is intended to be used in .login files, silently
        !            18:    checking if you have mail on another machine.
        !            19: 
        !            20:    Must duplicate effort that will be redone by the net command-
        !            21:    the calls to commandfile and promptlogin are necessary
        !            22:    to get a value for the login name to send to the prmail
        !            23:    command on the other machine.
        !            24:    May read the passwd file:
        !            25:        1. Commandfile calls getenv(HOME) to get the home directory.
        !            26:           If not easily reached,....
        !            27:        2. SnCurrent() calls getlogin(). If no entry in utmp file,
        !            28:           will read passwd file.
        !            29:  */
        !            30: # include "defs.h"
        !            31: 
        !            32: main(argc,argv)
        !            33:   char **argv; {
        !            34:        char *s;
        !            35:        char machparm[BUFSIZ], fromaddress[BUFSIZ], fMailCheck = 0;
        !            36:        char removemail=0, removestr[10], rcmd[BUFSIZ];
        !            37:        debugflg = DBV;
        !            38:        strcpy(rcmd,"netmail");
        !            39:        argc--; argv++;
        !            40:        while(argc > 0 && argv[0][0] == '-'){
        !            41:                switch(argv[0][1]){
        !            42:                case 'b':       status.nonotify++; appss(rcmd,argv[0]); break;
        !            43:                case 'c':       fMailCheck++;      appss(rcmd,argv[0]); break;
        !            44:                case 'f':       status.force++;    appss(rcmd,argv[0]); break;
        !            45:                case 'l':       harg(status.login,&argc,&argv); break;
        !            46:                case 'n':       status.nowrite++;  appss(rcmd,argv[0]); break;
        !            47:                case 'p':       harg(status.mpasswd,&argc,&argv); break;
        !            48:                case 'q':       /* ignore */ break;
        !            49:                case 'r':       removemail++;      appss(rcmd,argv[0]); break;
        !            50:                default:
        !            51:                        fprintf(stderr,
        !            52:        "Usage: netmail [-l login] [-p password] [-c] [-f] [-n] [-r] [mach]\n");
        !            53:                        exit(1);
        !            54:                }
        !            55:                argc--, argv++;
        !            56:                }
        !            57:        if(argc > 0){
        !            58:                if(FMemberSCh(argv[0],':'))
        !            59:                        remote = MchSFromAddr(status.login,argv[0]);
        !            60:                else
        !            61:                        remote = lookup(argv[0]);
        !            62:                if(remote == 0){
        !            63:                        fprintf(stderr,"Unknown machine %s\n",argv[0]);
        !            64:                        exit(1);
        !            65:                }
        !            66:                appss(rcmd,argv[0]);
        !            67:        }
        !            68: 
        !            69:        /* read the .netrc file to get a value for remote */
        !            70:        /* will get status.login, passwd, and force for fetch variant */
        !            71:        commandfile();
        !            72:        if(remote == 0)remote = getremote(local);
        !            73:        sprintf(machparm,"-m%c",remote);
        !            74:                
        !            75: 
        !            76:        if(remote == local){
        !            77:                fprintf(stderr,
        !            78:                "Use the mail command to read your mail on this machine.\n");
        !            79:                exit(1);
        !            80:        }
        !            81: 
        !            82:        /* get local address to send to prmail, store in status.localname */
        !            83:        s = SnCurrent();
        !            84:        if(s == NULL){
        !            85:                fprintf(stderr,"Unknown local user");
        !            86:                exit(1);
        !            87:        }
        !            88:        strcpy(status.localname,s);
        !            89:        sprintf(fromaddress,"%s:%s",longname(local),s);
        !            90: 
        !            91:        /* mail check variant */
        !            92:        if(fMailCheck){
        !            93:                if(status.login[0] == 0){
        !            94:                        fprintf(stderr,
        !            95:                        "Must supply a remote user name for mail check.\n");
        !            96:                        exit(1);
        !            97:                }
        !            98:                /* send mail check over, no passwd needed */
        !            99:                mexecl(netcmd,"net","-q",machparm,"-l","network","-c",rcmd,
        !           100:                PRMAIL,"-c","-l",status.login,"-f",fromaddress,0);
        !           101:                fprintf(stderr,"Network is down\n");
        !           102:                exit(1);
        !           103:        }
        !           104: 
        !           105:        /* mail forward variant */
        !           106: 
        !           107:        /* 
        !           108:           get name to send as parameter to prmail.
        !           109:           required for multiple login names with the same uid's
        !           110:           stored in status.login
        !           111:        */
        !           112:        promptlogin(remote);    /* prompt for name, passwd explicitely */
        !           113: 
        !           114:        if(removemail)strcpy(removestr,"-r");
        !           115:        else          strcpy(removestr,"-z");
        !           116:        kexecl(netcmd,"net","-q",machparm,"-c",rcmd,PRMAIL,"-l",
        !           117:                status.login,"-f",fromaddress,removestr,0);
        !           118:        fprintf(stderr,"Network is down\n");
        !           119:        exit(1);
        !           120:        }
        !           121: /*
        !           122:        append string sfrom to end of string sto, preceded by blank */
        !           123: appss(sto,sfrom)
        !           124:        register char *sto, *sfrom;
        !           125: {
        !           126:        strcat(sto," ");
        !           127:        strcat(sto,sfrom);
        !           128: }

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